Sql server 2005 CTE 拆分字符串

alter FUNCTION [dbo].[UF_SpliteIntToTable]

(

@String VARCHAR(8000)

)

RETURNS @Table TABLE (Id INT)

AS

BEGIN

DECLARE @SpliteChar AS CHAR(1) = ',';

WITH TempTable AS

(

SELECT CAST(SUBSTRING(@String,1,CHARINDEX(@SpliteChar,@String,1) - 1) AS INT) AS item,

SUBSTRING(@String,CHARINDEX(@SpliteChar,@String,1) + 1, LEN(@String)) + @SpliteChar AS list

UNION ALL

SELECT CAST(SUBSTRING(list,1,CHARINDEX(@SpliteChar,list,1) - 1) AS INT) AS item,

SUBSTRING(list,CHARINDEX(@SpliteChar,list,1) + 1, LEN(list)) AS list

FROM TempTable

WHERE LEN(TempTable.list) > 0

)

INSERT INTO @Table SELECT item FROM TempTable WHERE item > 0

RETURN

END